// Copyright 2021 Red Hat, Inc. and/or its affiliates
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
//      http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.

package api

import "fmt"

// Image is a definition of a Docker image.
type Image struct {
	Domain string `json:"domain,omitempty"`
	Name   string `json:"name,omitempty"`
	Tag    string `json:"tag,omitempty"`
}

// IsEmpty verifies if this Image instance is empty.
func (i *Image) IsEmpty() bool {
	return len(i.Domain) == 0 &&
		len(i.Name) == 0 &&
		len(i.Tag) == 0
}

// String representation of this Image.
func (i *Image) String() string {
	if i.IsEmpty() {
		return ""
	}
	return fmt.Sprintf("%s/%s:%s", i.Domain, i.Name, i.Tag)
}
